From: SASADA Koichi <ko1@...>
Date: 2010-12-01T23:38:55+09:00
Subject: [ruby-dev:42667] Re: Errno::EINTR: Interrupted system call on console#echo=

(2010/12/01 23:13), SASADA Koichi wrote:
> 　現実的にはほぼ無さそうなんですが、setattr()（tcsetattr()） が EINTR を
> 返す可能性が、無くはないようです。どういうシチュエーションだろう。

　こうかな。

Index: ext/io/console/console.c
===================================================================
--- ext/io/console/console.c	(revision 29985)
+++ ext/io/console/console.c	(working copy)
@@ -26,7 +26,16 @@
 #if defined HAVE_TERMIOS_H
 # include <termios.h>
 typedef struct termios conmode;
-# define setattr(fd, t) (tcsetattr(fd, TCSAFLUSH, t) == 0)
+
+static int
+setattr(int fd, conmode *t)
+{
+    int r;
+  retry:
+    r = tcsetattr(fd, TCSAFLUSH, t);
+    if (r != 0 && errno == EINTR) goto retry;
+    return r == 0;
+}
 # define getattr(fd, t) (tcgetattr(fd, t) == 0)
 #elif defined HAVE_TERMIO_H
 # include <termio.h>


-- 
// SASADA Koichi at atdot dot net